Field of the Dead #247 from Core Set 2020 is a foil rare card that currently sells for about $27.97 ungraded, with graded copies ranging from $49.99 at grade 9 to $35.00 at grade 9.5. A grade 9.5 copy sells for around $35.00 vs $27.97 raw. That's a modest premium, so grading only pays off for near-perfect copies.